Improper authorization in OpenID Connect Authentication - CVE-2025-24856
Published: January 28, 2025
Vulnerability identifier: #VU103413
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-24856
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to hijack accounts.
The vulnerability exists due to an issue in account linking logic. A remote attacker can register a public frontend user account using email address before the user's first OIDC login and take over victim's account after oidc is used at a later stage.
Affected software
OpenID Connect Authentication
How to mitigate CVE-2025-24856
Install updates from vendor's website.
OpenID Connect Authentication - update to 4.0.0